1336252145 has 4 divisors (see below), whose sum is σ = 1603502580. Its totient is φ = 1069001712.

The previous prime is 1336252129. The next prime is 1336252171. The reversal of 1336252145 is 5412526331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5412526331 = 29 ⋅186638839.

It can be written as a sum of positive squares in 2 ways, for example, as 981005041 + 355247104 = 31321^2 + 18848^2 .

It is a cyclic number.

It is not a de Polignac number, because 1336252145 - 2⁴ = 1336252129 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133625210 + ... + 133625219.

It is an arithmetic number, because the mean of its divisors is an integer number (400875645).

Almost surely, 2^1336252145 is an apocalyptic number.

It is an amenable number.

1336252145 is a deficient number, since it is larger than the sum of its proper divisors (267250435).

1336252145 is an equidigital number, since it uses as much as digits as its factorization.

1336252145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267250434.

The product of its digits is 21600, while the sum is 32.

The square root of 1336252145 is about 36554.7827924062. The cubic root of 1336252145 is about 1101.4449729362. Note that the first 3 decimals are identical.

Adding to 1336252145 its reverse (5412526331), we get a palindrome (6748778476).

The spelling of 1336252145 in words is "one billion, three hundred thirty-six million, two hundred fifty-two thousand, one hundred forty-five".